A marble attack stone is the best stone that can be built in the games Room in a player-owned house. The marble attack stone is a melee game where players take turns hitting the stone. Sometimes, pieces of the stone may fly off and hit the attacker in the face, doing about 0-40 points of damage. This very rarely kills off the attacker, although no items are lost if it does. The winner is the player who manages to destroy it. A marble attack stone has 1200 life points. When a player tries to cast stun or any other curse spell, it says "You can't attack this NPC".